Improve http://jackrabbit.apache.org/oak/docs/query/lucene.html with the following:
- Extend the analyzers section including a reference on how to support stemming (http://jackrabbit.apache.org/oak/docs/query/lucene.html)
- supersedes - does not seem to be documented**
- functionName (string) & useIfExists (string) are not listed in the canonical Index Definition structure.
- function (string) is not listed in the canonical Property Definitions structure
- weight - in the canonical structure the default value is -1, but the actual default is 5